Installation Procedures
950-818-100-01, Revision 01
8
November 30, 1999
PCS-818 List 1
I
NSTALLATION
P
ROCEDURES
R
EQUIRED
T
OOLS
AND
T
EST
E
QUIPMENT
The tools and test equipment required for the installation of the COT shelf are:
•
One wire-wrap tool for .045-inch square pins
•
One #2 Phillips screwdriver
•
One flat-head screwdriver
•
One pair wire-strippers
•
One pair side-cutters
•
One Volt-Ohmmeter
P
OWER
The COT shelf uses –48 Vdc CO battery. This voltage must be fused on a fuse panel in the CO. The fuse rating
depends on the powering option used.
summarizes the current drawn by the PCS-818 COT shelf, when it is fully populated with services listed
for a battery voltage of –48.0 Vdc and with all CO and RT distances at their maximum DSL reach. The table
provides the average current drawn from a fully populated shelf under the max condition.
.
M
OUNTING
The PCS-818 can accommodate the EIA 19 inch frames and ETS 300 119-3 frames. The mounting bracket can
be reversed to accommodate the hole spacing of either frame. The PCS-818 occupies nine Standard Height Units
(H-SU) or the ETS frame (one HS-U equals 25mm).
These conditions assume that at every customer site will have all POTS lines are off hook.
The configuration used for computing
is sixteen COLUs, and one PAU/PMU.
Table 3.
PCS-818 Shelf Supply Current
Service
Models
Average
(a)
battery
current
(a) Indicates the current when all lines are off hook with all DSL lines at MAX length with
–48
Vdc battery.
Recommended
fuse
(b)
(b) Indicates the recommended fuse allowed for 42.5 Vdc battery and 15% fuse margin.
Power Dissipation
4 POTS
PLL-820,
PRL-870
5.5 A
7.5 A
122.0 W
6 POTS
PLL-821,
PRL-871
6.6 A
10.0 A
146.0 W
